Mon, 16 Sep 2013 14:13:44 +0200
8021112: Spurious unchecked warning reported by javac
6480588: No way to suppress deprecation warnings when implementing deprecated interface
Summary: Fixing DeferredLintHandler configuration, so lint warnings are reported with correct @SuppressWarnings settings
Reviewed-by: jjg, vromero
1 /*
2 * Copyright (c) 2006, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
24 /*
25 * @test
26 * @bug 6421111
27 * @summary NullPointerException thrown when retrieving bounds for the type parameter
28 * @author Peter von der Ah\u00e9
29 * @library ../lib
30 * @build ToolTester
31 * @compile -Xlint:all T6421111.java
32 * @run main T6421111
33 */
35 import java.io.File;
36 import java.net.URI;
37 import java.util.Arrays;
38 import java.util.Collections;
39 import java.util.Set;
40 import javax.annotation.processing.AbstractProcessor;
41 import javax.annotation.processing.RoundEnvironment;
42 import javax.annotation.processing.SupportedAnnotationTypes;
43 import javax.annotation.processing.SupportedSourceVersion;
44 import javax.lang.model.SourceVersion;
45 import javax.lang.model.element.TypeElement;
46 import javax.lang.model.element.TypeParameterElement;
47 import javax.lang.model.type.DeclaredType;
48 import javax.lang.model.type.TypeVariable;
49 import javax.tools.SimpleJavaFileObject;
51 import static javax.tools.JavaFileObject.Kind.SOURCE;
53 public class T6421111 extends ToolTester {
54 void test(String... args) {
55 class Test1 extends SimpleJavaFileObject {
56 Test1() {
57 super(URI.create("myfo:///Test1.java"), SOURCE);
58 }
59 @Override
60 public String getCharContent(boolean ignoreEncodingErrors) {
61 return "class Test1<T extends Thread & Runnable> {}";
62 }
63 }
64 class Test2 extends SimpleJavaFileObject {
65 Test2() {
66 super(URI.create("myfo:///Test2.java"), SOURCE);
67 }
68 @Override
69 public String getCharContent(boolean ignoreEncodingErrors) {
70 return "class Test2<T extends Test2<T> & Runnable> {}";
71 }
72 }
73 task = tool.getTask(null, fm, null, Collections.singleton("-Xlint:all"), null,
74 Arrays.asList(new Test1(), new Test2()));
75 task.setProcessors(Collections.singleton(new MyProcessor()));
76 if (!task.call())
77 throw new AssertionError("Annotation processor failed");
78 }
79 @SupportedAnnotationTypes("*")
80 static class MyProcessor extends AbstractProcessor {
81 void test(TypeElement element, boolean fbound) {
82 TypeParameterElement tpe = element.getTypeParameters().iterator().next();
83 tpe.getBounds().getClass();
84 if (fbound) {
85 DeclaredType type = (DeclaredType)tpe.getBounds().get(0);
86 if (type.asElement() != element)
87 throw error("%s != %s", type.asElement(), element);
88 TypeVariable tv = (TypeVariable)type.getTypeArguments().get(0);
89 if (tv.asElement() != tpe)
90 throw error("%s != %s", tv.asElement(), tpe);
91 }
92 }
93 public boolean process(Set<? extends TypeElement> annotations,
94 RoundEnvironment roundEnv) {
95 test(processingEnv.getElementUtils().getTypeElement("Test1"), false);
96 test(processingEnv.getElementUtils().getTypeElement("Test2"), true);
97 return false;
98 }
99 @Override
100 public SourceVersion getSupportedSourceVersion() {
101 return SourceVersion.latest();
102 }
103 }
104 public static void main(String... args) {
105 new T6421111().test(args);
106 }
107 public static AssertionError error(String format, Object... args) {
108 return new AssertionError(String.format(format, args));
109 }
110 }